What Is a Medicare Special Needs Plan (SNP)?

Key Takeaways

SNPs are a restricted subset of Medicare Advantage plans. Not all Medicare beneficiaries qualify.

There are four types of SNP plans, including D-SNP (dual-eligible), C-SNP (chronic condition), I-SNP (institutional care) and IE-SNP (institutional-equivalent).

D-SNPs are the most common type, serving dual-eligible beneficiaries who have both Medicare and Medicaid.

What Is a Medicare Special Needs Plan?

A Special Needs Plan (SNP) is a Medicare Advantage plan for people in three groups: those eligible for both Medicare and Medicaid, those with severe or disabling chronic conditions, and those who live in or need institutional-level care. All SNPs must cover Medicare Part A and Part B benefits.

SNPs are Medicare Advantage plans with restricted enrollment, tailored benefit packages and care coordination requirements tied to a specific qualifying condition or situation. Enrollment requires meeting one of three eligibility criteria. Each plan's Model of Care is reviewed annually by the National Committee for Quality Assurance (NCQA). Prior authorization is required for services outside routine preventive care, and network restrictions apply.

Types of Special Needs Plans

Medicare has three SNP types, each restricted to a different qualifying population. Benefits, coordination requirements and enrollment rules vary across all three.

Dual Special Needs Plan (D-SNP)

D-SNPs serve beneficiaries who qualify for both Medicare and Medicaid. They are the most common SNP type and must coordinate benefits across both programs. Enrollment is limited to dual-eligible individuals, and most D-SNPs require members to use Medicaid-contracted providers within the plan's network.

Chronic Condition Special Needs Plan (C-SNP)

C-SNPs restrict enrollment to people with one or more of 15 qualifying chronic conditions recognized by CMS, including diabetes, chronic heart failure, chronic lung disorders, and end-stage renal disease. The plan's benefit package and care management model must be tailored to the targeted condition.

Institutional Special Needs Plan (I-SNP)

I-SNPs serve people who live in a long-term care facility, such as a skilled nursing facility or nursing home. I-SNPs also cover people who require an equivalent level of institutional care. The plan must employ or contract with a medical director and provide care coordination aligned with institutional care needs.

Institutional-Equivalent Special Needs Plan (IE-SNP)

IE-SNPs cover people who live in the community, not in a facility, but who require an institutional level of care. Enrollees must have a documented need for the level of care provided in a nursing home and must be enrolled in a PACE program or state Medicaid waiver program.

Who Qualifies for a Medicare Special Needs Plan?

SNP eligibility depends entirely on which type you're applying for. There's no single SNP enrollment test. D-SNPs require both Medicare Part A and Part B and full Medicaid benefits in the plan's service area. C-SNPs require Medicare Parts A and B and a documented diagnosis of one of the 15 CMS-designated chronic conditions the plan targets. I-SNPs and IE-SNPs require Medicare Parts A and B and either residence in a qualifying institution or a documented need for institutional-level care. Standard Medicare Advantage enrollment rules also apply. You must be enrolled in Medicare Parts A and B and live in the plan's service area.

What Does a Special Needs Plan Cover?

Every SNP covers what Original Medicare covers and includes built-in Part D drug coverage. Most add supplemental benefits targeted to their qualifying population:

Hospital and medical coverage: All SNPs include Part A hospital benefits and Part B medical benefits, matching Original Medicare.
Prescription drug coverage: Part D coverage is built into every SNP, and no separate drug plan is needed.
Dental, vision and hearing: Most SNPs include benefits Original Medicare doesn't cover.
Transportation and meal delivery: Many D-SNPs cover rides to medical appointments and home-delivered meals for qualifying members.
Chronic disease management: C-SNPs cover condition-specific benefits (like glucose monitors and diabetic nutrition counseling) that standard Medicare Advantage plans don't include.
Over-the-counter items: Some D-SNPs include a monthly or quarterly allowance for approved OTC health products.
Care coordination: I-SNPs include specialized support for nursing home transitions and long-term care planning.

How Much Does a Special Needs Plan Cost?

Many D-SNPs have a $0 monthly premium, but costs vary by plan type, county, and included benefits. The main cost components are the monthly premium, the Part B premium (still owed regardless of SNP enrollment), in-network copays, and the plan's maximum out-of-pocket (MOOP) limit.

D-SNP enrollees with full Medicaid may have their cost-sharing covered by Medicaid, effectively reducing out-of-pocket costs to $0. C-SNP and I-SNP enrollees have standard Medicare Advantage cost-sharing. CMS sets the maximum MOOP limit for Medicare Advantage plans, including SNPs, each year. To compare premiums and MOOP limits across SNPs, review our analysis of Medicare Advantage plan costs.

How Do I Enroll in a Medicare Special Needs Plan?

SNP enrollment requires an extra step beyond standard Medicare Advantage sign-up. Confirm eligibility for the specific SNP type and time your enrollment to an open window:

1
Confirm your qualifying status
Each SNP type has its own eligibility requirement. D-SNP requires active Medicaid enrollment. C-SNP requires a documented diagnosis of a CMS-qualifying chronic condition. I-SNP and IE-SNP require institutional-level care documentation. Your doctor or a benefits counselor can verify your status before you search for plans.
2
Check plan availability in your county
SNPs aren't available in every area. Go to Medicare's Plan Finder at Medicare.gov, enter your ZIP code and filter by your qualifying condition or coverage type to see the plans available to you.
3
Review the Evidence of Coverage
Check the SNP's benefit package, provider network, formulary and cost-sharing structure against your current care needs. Confirm your doctors and prescriptions are covered in-network before enrolling.
4
Enroll during an eligible enrollment period
Most SNP enrollment happens during the Annual Enrollment Period (October 15 to December 7) or a Special Enrollment Period triggered by a qualifying event — gaining Medicaid eligibility or moving to a care facility, for example. D-SNP enrollees with full dual eligibility can enroll or switch plans monthly.
5
Coordinate with your Medicaid case manager (D-SNP only)
D-SNP enrollees should notify their Medicaid case manager when enrolling. D-SNPs are required to coordinate benefits across Medicare and Medicaid, and your case manager can confirm the full benefit package takes effect without gaps.

How Do I Find Special Needs Plans in My Area?

Medicare's Plan Finder at Medicare.gov is the most direct way to find SNPs in your area. Enter your ZIP code, filter by "Special Needs Plans" and the results will show every SNP available in your county with premium, MOOP and formulary details.

Your State Health Insurance Assistance Program (SHIP) also provides free one-on-one counseling for Medicare beneficiaries and can help identify SNPs you qualify for. Medicaid beneficiaries can also be referred to D-SNP options through their state Medicaid office.

Frequently Asked Questions

Can I switch to a Special Needs Plan at any time?

D-SNP enrollees with full dual eligibility may enroll or switch plans monthly. C-SNP and I-SNP enrollees must wait until the Annual Enrollment Period (Oct. 15–Dec. 7) or qualify for a Special Enrollment Period based on a life event, such as moving or losing other coverage.

Do Special Needs Plans include drug coverage?

All SNPs include Part D prescription drug coverage as a mandatory component, unlike standard Medicare Advantage plans, which may or may not bundle drug coverage.

What chronic conditions qualify for a C-SNP?

The 15 CMS-designated chronic conditions are: chronic alcohol and other drug dependence, Alzheimer's disease and related disorders, autism spectrum disorders, cancer (excluding pre-cancer), cardiovascular disorders, chronic heart failure, dementia and mental health conditions, diabetes mellitus, end-stage liver disease, end-stage renal disease (ESRD), severe hematologic disorders, HIV/AIDS, chronic lung disorders, chronic and disabling mental health conditions, and neurological disorders.

Is a Special Needs Plan the same as Medicaid?

A SNP is not Medicaid. It is a Medicare Advantage plan. D-SNPs coordinate with Medicaid but are Medicare products. Premiums, coverage, and enrollment fall under Medicare rules, not Medicaid.

What happens if I no longer qualify for my SNP?

If you lose eligibility, you receive a Special Enrollment Period to switch to a different Medicare Advantage plan or return to Original Medicare.

Can I use a Special Needs Plan outside my plan's network?

Most SNPs use an HMO structure, which means out-of-network care is generally not covered except in emergencies. Some SNPs offer a PPO structure with out-of-network cost-sharing. Check the plan's Summary of Benefits before enrolling.

About Mark Fitzpatrick

Mark Fitzpatrick, a Licensed Property and Casualty (P&C) Insurance Producer in Connecticut, is MoneyGeek's resident insurance expert. He has spent nearly a decade analyzing the market, first at LendingTree and now at MoneyGeek, where he produces original research on hundreds of carriers and millions of rates across auto, home, renters, health and life insurance.

He covers economics and insurance at MoneyGeek, and his work has been featured in The Washington Post, The New York Times and NPR, among other outlets.

Like all MoneyGeek analysts, he draws on independent cost and consumer experience data. No insurance company partnership influences his recommendations.

Fitzpatrick earned his degrees from Johns Hopkins University (M.A. Economics and International Relations) and Boston College (B.A.). His career began in financial risk management at State Street. He's also a five-time “Jeopardy!” champion.

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